18534955 has 8 divisors (see below), whose sum is σ = 22402800. Its totient is φ = 14720736.

The previous prime is 18534889. The next prime is 18534959. The reversal of 18534955 is 55943581.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18534955 - 2⁷ = 18534827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18534959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12640 + ... + 14029.

It is an arithmetic number, because the mean of its divisors is an integer number (2800350).

Almost surely, 2^18534955 is an apocalyptic number.

18534955 is a deficient number, since it is larger than the sum of its proper divisors (3867845).

18534955 is a wasteful number, since it uses less digits than its factorization.

18534955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26813.

The product of its digits is 108000, while the sum is 40.

The square root of 18534955 is about 4305.2241521203. The cubic root of 18534955 is about 264.6450927123.

The spelling of 18534955 in words is "eighteen million, five hundred thirty-four thousand, nine hundred fifty-five".